Our Patreon campaign to make it to 100 Patrons is still on!

Once we reach our goal, all of our 100 Patrons will be able to vote on where they'd like

us to go in our new home of Barcelona, Spain.

We'll take you along with us with photos, video and audio all posted to our Patreon page.

And that's not all.

For a dollar a month, you'll get an ad-free version of Tumbo along with Marshall's

Brilliant Music.

For $5 a month, you'll get a shout out on the podcast, plus our educational materials

that come with each new show.

And for $10 a month, we'll throw in a Tumbo T-shirt.

You can join our awesome new Patreon members.

Canari Setti from Dallas, Texas, Jack O'Donnell from Chatham, New Jersey, The Townsend family,

Grace Zeagmont, Lucas and Olivia Taylor, Ruby Puy, Sebastian and Isadora Buzenberg,

and Yohanna and Thiquea Katzirakis.

Thanks so much for supporting the show.

You're helping us make great science stories from all over the world for listeners everywhere.

Now on to the show.

Hi, I'm Lindsay.

And I'm Marshall.

Welcome to Tumbo, the show where we explore stories of science discovery.

Our solar system is on a mind-blowing journey through space and we're along for the ride.

But how do scientists know where we're headed?

...